Now Playing: 09-10-12 Marketplace

Chicago teachers went on strike today for the first time in 25 years, and it could cost the city $25 million. The United States Treasury is thinking about selling $18 billion worth of its AIG stock. A group from Mexico has traveled to Washington D.C. to plead with elected officials to change the way the U.S. conducts the war on drugs. Kai Ryssdal talks to author Scott Reynolds Nelson about his new book "A Nation of Deadbeats" and about how historically Americans aren't very good at paying their debt. And we look at why this past weekend's movie box office was the worst in nearly a decade.